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- W2028380632 abstract "A variational principle is suggested within Riemannian geometry, in which an auxiliary metric and the Levi Civita connection are varied independently. The auxiliary metric plays the role of a Lagrange multiplier and introduces nonminimal coupling of matter to the curvature scalar. The field equations are 2nd order PDEs and easier to handle than those following from the so-called Palatini method. Moreover, in contrast to the latter method, no gradients of the matter variables appear. In cosmological modeling, the physics resulting from the alternative variational principle will differ from the modeling using the standard Palatini method." @default.
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- W2028380632 date "2010-06-07" @default.
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- W2028380632 title "Alternative to the Palatini method: A new variational principle" @default.
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- W2028380632 doi "https://doi.org/10.1103/physrevd.81.124019" @default.
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